MNC Valves is a Manufacturers of Diaphragm Control Valve in India supplying industrial diaphragm operated control valves designed for reliable regulation of flow in corrosive, viscous, and sensitive process media.
Diaphragm control valves use a flexible diaphragm element to regulate flow while isolating the actuator mechanism from the process fluid.
These valves are widely used in industries where leak-free sealing and corrosion resistance are required.
Typical applications include:
- Chemical processing plants
- Water treatment plants
- Pharmaceutical industries
- Food processing plants
- Industrial fluid handling systems
MANUFACTURING STANDARDS
Manufactured according to recognized industrial standards:
- ASME B16.34 β Pressure Temperature Ratings
- ASME B16.5 β Flanged End Connections
- API 598 β Testing & Inspection
- IEC 60534 β Control Valve Performance
- ISO 5211 β Actuator Mounting Interface
PRODUCT DESIGN OVERVIEW
Diaphragm control valves regulate flow using a flexible diaphragm that moves against a seat to control the process fluid.
The diaphragm isolates the actuator components from the media, making the valve suitable for corrosive or contaminated fluids.
Typical assembly includes:
- Valve body
- Flexible diaphragm
- Compressor plate
- Valve bonnet
- Actuator assembly
This design ensures smooth throttling and reliable sealing performance.
VALVE CONFIGURATIONS
Two Way Diaphragm Control Valve
Two way diaphragm valves regulate flow between a single inlet and outlet.
Functions include:
- Flow control
- Pressure regulation
- Process isolation
These valves are commonly used in chemical and water treatment systems.
SIZE RANGE
- DN 15 mm to DN 200 mm (Standard)
- Larger sizes available on request
Pressure rating depends on design and material selection.
MATERIALS OF CONSTRUCTION
| Body Material |
Diaphragm Materials |
| WCB β Carbon Steel, SS304 β Stainless Steel, SS316 β Stainless Steel |
EPDM, PTFE, Viton |
DESIGN FEATURES
- Leak-free diaphragm sealing
- Isolation of actuator components
- Smooth throttling control
- Low maintenance design
- Corrosion resistant configuration
- Suitable for sensitive process media
ACTUATOR FEATURES
Diaphragm control valves can be supplied with:
Features include:
- Pneumatic Actuator
- Electric Actuator
- Manual Operation
Pneumatic diaphragm actuation is commonly used in automated systems.
TESTING & QUALITY CONTROL
- The actuator moves the diaphragm toward or away from the valve seat.
- This movement regulates the flow of fluid through the valve.
- Because the diaphragm separates the actuator from the process fluid, contamination and corrosion risks are minimized.
INDUSTRIES SERVED
Diaphragm control valves are used in:
- Chemical processing plants
- Pharmaceutical manufacturing
- Water treatment systems
- Food and beverage processing
- Industrial fluid handling systems
Frequently Asked Questions
1. What is a diaphragm control valve?
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A valve that regulates flow using a flexible diaphragm element.
2. What materials are available?
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WCB and Stainless Steel.
3. What diaphragm materials are available?
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EPDM, PTFE, and Viton.
4. What size range is available?
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DN 15 mm to DN 200 mm.
5. What industries use diaphragm valves?
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Chemical, pharmaceutical, and water treatment industries.
6. Are these valves suitable for corrosive media?
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Yes.
7. What actuation types are available?
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Pneumatic and electric.
8. What testing standard is followed?
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API 598.
9. Can diaphragm valves be automated?
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Yes.
10. What is the main advantage of diaphragm valves?
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Leak-free sealing and media isolation.
ENQUIRY DETAILS REQUIRED
To select correct valve, please provide:
- Valve Size
- Pressure rating
- Pressure
- Media
- Temperature
- Diaphragm material requirement
- Actuation type
- Quantity
Our engineering team will assist in selecting the correct diaphragm control valve configuration.